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Zoom Effect Slideshow

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With zoom lenses you can get a novel special effect by changing focal lengths during an exposure. The result is a sharp central subject engulfed in a burst of light streaks. Credit: Photo: Lawrence Wee/Shutterstock

With zoom lenses you can get a novel special effect by changing focal lengths during an exposure. The result is a sharp central subject engulfed in a burst of light streaks. Credit: Photo: Lawrence Wee/Shutterstock

To make the exposure, simply press the shutter button with one hand and slide or twist the zoom through its focal range with the other. Credit: Photo: Rusty Dodson/Shutterstock